Electric gas-lighter



(No Model.)

J. 0. DAHLGREN. ELEGTRIG GAS LIGHTER.

No. 515,391. Patented Feb. 27, 1894.

U ITED STATES :ATENT Fries...

JOHN O. D AHLGREN, OF BOSTON, MASSACHUSETTS.

ELECTRIC GAS-LIGHTER.

SPECIFICATION forming part of Letters Patent No. 515,397, dated February27, 1894.

Application filed December 30, 1893.

To all whom it may concern.-

Be it known that 1, JOHN O. DAHLGREN, a subject of the King of Swedenand Norway, and a resident of Boston, in the county of Suffolk and Stateof Massachusetts, haveinvented new and useful Improvements in ElectricGas- Lighters, of which the following, taken in connection with theaccompanying drawings, is a specification.

This invention relates to improvements in electric gas lighters and itis carried out as follows, reference being had to the accompanyingdrawings wherein- Figure 1, representsa side elevation of the inventionshowing the cock closed. Fig. 2, represents an end elevation seen from Xin Fig. 1. Fig. 3, represents a central longitudinal section on the line33 shown in Fig. 1. Fig. 4, represents an enlarged top plan View partlyshown in section; and Fig. 5, represents an enlarged cross section onthe line 5-5 shown in Fig. 1.

Similar letters refer to similar parts wherever they occur on thedifferent parts of the drawings.

A represents the tapering gas cook or plug journaled in the shell B andadapted to be turned therein between stops from open to shut positionsas is common in gas cook devices.

A is the handle of the plug A in the usual manner.

The upper end of the shell B is preferably screw threaded as shown inFig. 3 and to it is detachably, but firmly secured the upwardlyprojecting tubular casing O to the upper end of which is preferablysecured by means of a screw 0' the ring 0 as shown in the drawings. Theupper end of the cock A is also screw threaded and provided with the nutand washer a a for the purpose of retaining said cock within its shellas shown in Fig. 3.

To the upper end of the cock A is secured the metal gas tube D providedwith a tip or burner E as shown, the latter having a slitted opening 6as is common in gas burners. To the upper end of the tube D is securedin an adjustable manner, preferably by means of a set screw F the metalring F having a projection F adapted to actuate the insu- Serial No.495,233- (No model.)

lated electrode g so as to bring it in contact with the electrode fsecured to or forming a part of the metal ring F during the openingmovement of the cock A as will hereinafter be more fully shown anddescribed. The electrode 9 is secured in an insulated manner to a leverH pivoted at h to the ring 0" or upper end of the casing O and isnormally held in the position shown in the drawings by the influence ofa suitable spring I arranged between the tube D and easing O and I Wishto state that any suitable or desirable form of spring may be used forthis purpose as may be most convenient.

In practice I prefer to secure the electrode g in an insulated manner tothe clamping socket G by means of a set screw G to which one of thecircuit wires g leading from the battery is secured, the other pole ofthe battery being metallically connected to the gas pipe as is usual inelectric gas lighting devices.

To the spring pressed lever H is pivoted at is a pawl K having a tooth Kadapted to be brought in contact with the projection F" on the sleeve Fwhen the gas cock is being turned from a closed to an open position.

The operation of this my improved electric gas lighter is as follows: Byturning the cock A from closed to open position the projection F"attached to the tube D comes in contact with the tooth K on the pivotedpawl K by which the lever His caused to swing on its fulcrumsufficientlyto cause the electrodegto be brought in metallic contactwith the electrodefand to be released therefrom as the said projection Fpasses by the tooth K on pawl K causing a spark to be emitted betweenthe electrodes by which the gas flowing from the tip of the burner isignited. When the gas is ignited the electrodes are held at one side ofthe flame so as to not become unnecessarily heated. The electrode 9 isreturned to its normal position shown in the drawings during themovement of the gas cook A from its open to its closed position.

Having thus fullydescribed the nature, construction, and operation of myinvention, I wish to secure by Letters Patent and claim In an electricgas lighter the combination of a gas cook having attached to its plug anelectrode adjacent to the slit -in the burner 1 In testimony. whereof Ihave signed my to and having aprojection attached to said plug 1 name tothis specification, in the presence of or its connections combined witha stationtwo subscribing witnesses, on this 23d day of ary inclosingcase, aspring pressed lever piv- December, A. D. 1893.

5 oted thereto and having in one end an insulated electrode and in theother end a piv- JOHN DAHLGREN' oted pawl adapted to be actuated by thepro- Witnesses: jection on the gas cook substantially as and ALBANANDREN, for the purpose set forth. KITTIE M. HANSON.

